Substances Formed in Mammalian Liver

1. Bile - Bile is a digestive fluid produced by the liver and stored in the gallbladder. It plays a crucial role in the digestion and absorption of fats in the small intestine. Bile contains bile salts, which emulsify fats, making them easier to digest by breaking them down into smaller droplets. Additionally, bile helps neutralize stomach acids and aids in the absorption of fat-soluble vitamins.
2. Urea - Urea is a waste product formed in the liver as a result of protein metabolism. It is the primary way in which mammals excrete excess nitrogen, a byproduct of the breakdown of amino acids. The liver combines ammonia, a toxic compound that results from amino acid breakdown, with carbon dioxide to form urea. Urea is then transported to the kidneys for excretion in the urine.